Small Size Lithium Polymer Battery 3.7V
Small Size Lithium Polymer Battery 3.7V
400909: length, width and thickness 994mm 450909: length, width and thickness 994.5mm 401010: length, width and thickness 10104mm 501010: length, width and thickness 10105mm The battery cells are pouch cells. dimensions are measured manually, so please allow for a normal margin of error. if you're concerned about slight variations, please consider this before purchasing. thank you for your understanding.
Taobao
Seller ratings 92%
Review
5.0
/5
49 Ratings
G
g****t
Sep 25, 2026
I got two of these to replace the batteries in my earbuds. One of them is working perfectly and sounds great, while the other provided a good opportunity to test my multimeter. Everything is fine now.
Helpful (0)
G
g****t
Sep 25, 2026
Haha, this is great! The size I picked is quite generous; I just need to go with the 400909 size for a more snug fit.
Helpful (0)
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